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quant-ph2011
An optical fusion gate for W-states
Sahin Kaya Ozdemir, Eiji Matsunaga, Toshiyuki Tashima +3
We introduce a simple optical gate to fuse arbitrary size polarization entangled W-states to prepare larger W-states. The gate requires a polarizing beam splitter (PBS), a half wav…
quant-ph2010★ 24 cited
Efficient decoherence-free entanglement distribution over lossy quantum channels
Rikizo Ikuta, Yohei Ono, Toshiyuki Tashima +3
We propose and demonstrate a scheme for boosting up the efficiency of entanglement distribution based on a decoherence-free subspace (DFS) over lossy quantum channels. By using bac…